Friday, 5 October 2018

SQL failed with error "column ambiguously defined" in HANA Database

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Symptom
Execution of SQL statement failed with error:

SAP DBTech JDBC: [268]: column ambiguously defined: $rowid$: line col (at pos xxxx)

Environment

    HANA 1.0
    HANA 2.0

Reproducing the Issue

Execute the SQL statement via HANA studio SQL console or hdbsql
Cause

When internal columns such as $rowid$ is used, table name needs to be defined, otherwise, error message "column ambiguously defined" will occure
 
Resolution

If your SQL statement contains

ORDER BY "$rowid$"
And the execution failed with error "column ambiguously defined", you need to modify the statement to include the table name, for example:

ORDER BY ."$rowid$"

More details Refer Snote : 2695943


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